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<div class="title">/opt/GoogleCode/popot/trunk/popot-2.01/src/initializers.h</div>  </div>
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<a href="initializers_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef POPOT_INITIALIZER_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define POPOT_INITIALIZER_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="comment">// For various initialization procedures and bounds handling, see</span>
<a name="l00005"></a>00005 <span class="comment">// Helwig, Wanka (2008) &quot;Theoretical Analysis of Initial Particle Swarm Behavior&quot;</span>
<a name="l00006"></a>00006 <span class="comment">// In Proceedings of the 10th International Conference on Parallel Problem Solving from Nature, G. Rudolph et al. (Eds.),LNCS 5199, pages 889–898</span>
<a name="l00007"></a>00007 
<a name="l00008"></a>00008 <span class="keyword">namespace </span>popot
<a name="l00009"></a>00009 {
<a name="l00010"></a><a class="code" href="namespacepopot_1_1initializer.html">00010</a>   <span class="keyword">namespace </span>initializer
<a name="l00011"></a>00011   {
<a name="l00012"></a><a class="code" href="namespacepopot_1_1initializer_1_1position.html">00012</a>     <span class="keyword">namespace </span>position
<a name="l00013"></a>00013     {
<a name="l00014"></a>00014       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> VECTOR, <span class="keyword">typename</span> LBOUND_FUNC, <span class="keyword">typename</span> UBOUND_FUNC&gt;
<a name="l00015"></a><a class="code" href="namespacepopot_1_1initializer_1_1position.html#ab9c02cd8a5855099059ddf39d0e28d2d">00015</a>         <span class="keywordtype">void</span> <a class="code" href="namespacepopot_1_1initializer_1_1position.html#ab9c02cd8a5855099059ddf39d0e28d2d">zero</a> (VECTOR&amp; p, <span class="keyword">const</span> LBOUND_FUNC&amp; lbound, <span class="keyword">const</span> UBOUND_FUNC&amp; ubound)
<a name="l00016"></a>00016         {
<a name="l00017"></a>00017           <span class="comment">// fills in with 0</span>
<a name="l00018"></a>00018           <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0 ; i &lt; p.size() ; ++i)
<a name="l00019"></a>00019             p[i] = 0.0;
<a name="l00020"></a>00020         };
<a name="l00021"></a>00021 
<a name="l00022"></a>00022       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> VECTOR, <span class="keyword">typename</span> LBOUND_FUNC, <span class="keyword">typename</span> UBOUND_FUNC&gt;
<a name="l00023"></a><a class="code" href="namespacepopot_1_1initializer_1_1position.html#a76bfea94ffddf8b069755537a05f1bab">00023</a>       <span class="keywordtype">void</span> <a class="code" href="namespacepopot_1_1initializer_1_1position.html#a76bfea94ffddf8b069755537a05f1bab">uniform_random</a> (VECTOR&amp; p, <span class="keyword">const</span> LBOUND_FUNC&amp; lbound, <span class="keyword">const</span> UBOUND_FUNC&amp; ubound)
<a name="l00024"></a>00024       {
<a name="l00025"></a>00025         <span class="comment">// fills in with Uniform[min, max]</span>
<a name="l00026"></a>00026         <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0 ; i &lt; p.size() ; ++i)
<a name="l00027"></a>00027           p[i] = <a class="code" href="namespacepopot_1_1math.html#aff66c3835eec2f4653b273e25e8c841b">popot::math::uniform_random</a>(lbound(i),ubound(i));
<a name="l00028"></a>00028       };
<a name="l00029"></a>00029     } <span class="comment">// namespace position</span>
<a name="l00030"></a>00030 
<a name="l00031"></a><a class="code" href="namespacepopot_1_1initializer_1_1velocity.html">00031</a>     <span class="keyword">namespace </span>velocity
<a name="l00032"></a>00032     {
<a name="l00033"></a>00033       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> VECTOR, <span class="keyword">typename</span> LBOUND_FUNC, <span class="keyword">typename</span> UBOUND_FUNC&gt;
<a name="l00034"></a><a class="code" href="namespacepopot_1_1initializer_1_1velocity.html#a2b91af447a868034c398965491ea494e">00034</a>         <span class="keywordtype">void</span> <a class="code" href="namespacepopot_1_1initializer_1_1velocity.html#a2b91af447a868034c398965491ea494e">zero</a>(VECTOR&amp; p, VECTOR&amp; v, <span class="keyword">const</span> LBOUND_FUNC&amp; lbound, <span class="keyword">const</span> UBOUND_FUNC&amp; ubound)
<a name="l00035"></a>00035       {
<a name="l00036"></a>00036         <span class="comment">// fills in with 0</span>
<a name="l00037"></a>00037         <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0 ; i &lt; v.size() ; ++i)
<a name="l00038"></a>00038           v[i] = 0.0;
<a name="l00039"></a>00039       };
<a name="l00040"></a>00040 
<a name="l00041"></a>00041       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> VECTOR, <span class="keyword">typename</span> LBOUND_FUNC, <span class="keyword">typename</span> UBOUND_FUNC&gt;
<a name="l00042"></a><a class="code" href="namespacepopot_1_1initializer_1_1velocity.html#a795ae76d4fddaae9873eff91dd631ffb">00042</a>         <span class="keywordtype">void</span> <a class="code" href="namespacepopot_1_1initializer_1_1velocity.html#a795ae76d4fddaae9873eff91dd631ffb">half_diff</a>(VECTOR&amp; p, VECTOR&amp; v, <span class="keyword">const</span> LBOUND_FUNC&amp; lbound, <span class="keyword">const</span> UBOUND_FUNC&amp; ubound)
<a name="l00043"></a>00043       {
<a name="l00044"></a>00044         <span class="comment">// returns (U(min,max) - xi)/2.0</span>
<a name="l00045"></a>00045         <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0 ; i &lt; v.size() ; ++i)
<a name="l00046"></a>00046           v[i] = 0.5*(<a class="code" href="namespacepopot_1_1math.html#aff66c3835eec2f4653b273e25e8c841b">popot::math::uniform_random</a>(lbound(i), ubound(i))-p[i]);
<a name="l00047"></a>00047       };
<a name="l00048"></a>00048 
<a name="l00049"></a>00049       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> VECTOR, <span class="keyword">typename</span> LBOUND_FUNC, <span class="keyword">typename</span> UBOUND_FUNC&gt;
<a name="l00050"></a><a class="code" href="namespacepopot_1_1initializer_1_1velocity.html#a59fc517a77ec03d638c420f23f85d2a8">00050</a>         <span class="keywordtype">void</span> <a class="code" href="namespacepopot_1_1initializer_1_1velocity.html#a59fc517a77ec03d638c420f23f85d2a8">spso2011</a>(VECTOR&amp; p, VECTOR&amp; v, <span class="keyword">const</span> LBOUND_FUNC&amp; lbound, <span class="keyword">const</span> UBOUND_FUNC&amp; ubound)
<a name="l00051"></a>00051       {
<a name="l00052"></a>00052         <span class="comment">// returns U(min,max) - xi</span>
<a name="l00053"></a>00053         <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0 ; i &lt; v.size() ; ++i)
<a name="l00054"></a>00054           v[i] = <a class="code" href="namespacepopot_1_1math.html#aff66c3835eec2f4653b273e25e8c841b">popot::math::uniform_random</a>(lbound(i), ubound(i))-p[i];
<a name="l00055"></a>00055       };
<a name="l00056"></a>00056     } <span class="comment">// namespace velocity</span>
<a name="l00057"></a>00057   } <span class="comment">// namespace initializer</span>
<a name="l00058"></a>00058 } <span class="comment">// namespace popot</span>
<a name="l00059"></a>00059 
<a name="l00060"></a>00060 <span class="preprocessor">#endif</span>
</pre></div></div>
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